PIPE CARBOON STEEL SIZE: 3/8" -48" SMLS/ERWMaterial:ST37.AWWA.A106.A53.A333.X42.X60SCH:SCH10.20.30.40.XS.60.80.160.XXXS PIPE STAINLESS STEEL SIZE:1/4" -48" SMLS/ERWMaterial:310.304/304L.316/316L.321SCH:S5.10.40.XS.80.160.XXS